build-sys: import Makefile from darvaza.org

Signed-off-by: Alejandro Mery <amery@jpi.io>
2023-08-21 18:00:27 +00:00
parent f714210b37
commit a3f8e2fee3
8 changed files with 413 additions and 11 deletions
@@ -0,0 +1,63 @@
+#!/bin/sh
+
+set -eu
+
+: ${GO:=go}
+
+MODULES=$(find * -name go.mod -exec dirname '{}' \;)
+GROUPS="pkg cmd"
+BASE="$PWD"
+
+mod() {
+	local d="${1:-.}"
+	grep ^module "$d/go.mod" | cut -d' ' -f2
+}
+
+namedir() {
+	local d="$1" g= n=
+
+	if [ "." = "$d" ]; then
+		echo "root"
+		return
+	fi
+
+	for g in $GROUPS; do
+		n="${d#$g/}"
+		if [ "x$n" != "x$d" ]; then
+			echo "$n" | tr '/' '-'
+			return
+		fi
+	done
+
+	echo "$d" | tr '/' '-'
+}
+
+mod_replace() {
+	local d="$1"
+	grep "=>" "$d/go.mod" | sed -n -e "s;^.*\($ROOT_MODULE.*\)[ \t]\+=>.*;\1;p"
+}
+
+gen_index() {
+	local d= n=
+
+	for d; do
+		n=$(namedir "$d")
+		m=$(mod "$d")
+		echo "$n:$d:$m"
+	done
+}
+
+ROOT_MODULE=$(mod)
+INDEX=$(gen_index $MODULES)
+
+echo "$INDEX" | while IFS=: read name dir mod; do
+	deps=
+	for dep in $(mod_replace "$dir"); do
+		depname=$(echo "$INDEX" | grep ":$dep$" | cut -d: -f1 | tr '\n' ',' | sed -e 's|,\+$||g')
+		if [ -n "$depname" ]; then
+			deps="${deps:+$deps,}$depname"
+		fi
+	done
+
+	echo "$name:$dir:$mod:$deps"
+done | sort -V